It's been a long, four-year engagement for Jessica Simpson and Eric Johnson, but their wedding is coming up.

It's rumored that they'll finally be tying the knot this July 4th!

In preparation for her upcoming nuptials, Jessica has ratcheted up her workout by adding an extra, daily six-mile treadmill jog! That's nuts! How does she do that much time on a treadmill every single day??

Jessica Simpson has been on a weight loss journey for what seems like forever now.

Ever since the birth of her first child, daughter Maxwell, Jessica has been working hard on getting her pre-baby body back!

And she did! She got right back into her old, sexy self and then… BAM! Hello new baby Ace!

But she didn't let a second child deter her, she kept pushing, chugging forward toward her fitness goals, and now everything has led to today! She's been looking great lately, but this is amazingballs!

In this latest commercial, J.Simps looks absolutely incredible in a tight-fitting white dress and she opens up about how WW meetings have really helped keep her accountable and to stay focused and motivated!

Even after giving birth to her two kids, Maxwell and Ace, she loves her body and is confident in herself, no matter her weight, though she does really love the weight she's at now!

We can tell it's working because girl looks fit!

Check out the video (above) to see her latest Weight Watchers ad and check out her slammin' bod!

Jessica Simpson refers to her super sexy body as a "work in progress" — but we think it looks pretty damn good as it is!

Starring in the new Weight Watchers video called My Body, Jessica talks a bit about her body and what it's been through (two ADORABLE kids!) and what it's going through to get into the best shape ever!

It's nice to hear her talk about it, even though it's totally scripted! We get some thoughts from her instead of just boner material!

Good move, Weight Watchers!

Next we wanna see a swimsuit… regardless if things are still in "progress!"